Well i know that my car made a "knocking" sound but it turned out to be the air being sucked through the air filter quickly..
When your car is cold or however you first heard the sound, start the car, open the hood, and pull on the accellerator cable... if you hear a gasping noise... thats what mine did.. the mechanics at the ford dealership said it was an engine knock...but low and behold it was the engine gasping for air... g/l
When your car is cold or however you first heard the sound, start the car, open the hood, and pull on the accellerator cable... if you hear a gasping noise... thats what mine did.. the mechanics at the ford dealership said it was an engine knock...but low and behold it was the engine gasping for air... g/l